Conventional method completely depend on experience formula, its error is big.
传统的方法完全靠经验公式和经验来决定动力大小，误差较大。
For its error analysis, a formula and corresponding computer program are worked out.
建立了误差计算公式并用计算机程序进行计算。
Real-time display of formula number, theoretical formula weight, actual weight, proportioning error.
在线实时显示配方号，配方理论重量，实际配料重量，配料误差。
The example shows that the formula is more efficient than the trial and error method.
计算实例表明，用计量式计算比试差法更方便有效。
The formula of calculating error, method of realization and test result are given.
文中给出了误差计算公式、实现方法及试验结果。
The formula of calculating error, method of realization and test result are given.
文中给出了误差计算公式、实现方法及试验结果。
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